1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
2 | /* |
3 | * Copyright (C) 2014 Google, Inc. |
4 | */ |
5 | |
6 | #ifndef __PISTACHIO_CLK_H |
7 | #define __PISTACHIO_CLK_H |
8 | |
9 | #include <linux/clk-provider.h> |
10 | |
11 | struct pistachio_gate { |
12 | unsigned int id; |
13 | unsigned long reg; |
14 | unsigned int shift; |
15 | const char *name; |
16 | const char *parent; |
17 | }; |
18 | |
19 | #define GATE(_id, _name, _pname, _reg, _shift) \ |
20 | { \ |
21 | .id = _id, \ |
22 | .reg = _reg, \ |
23 | .shift = _shift, \ |
24 | .name = _name, \ |
25 | .parent = _pname, \ |
26 | } |
27 | |
28 | struct pistachio_mux { |
29 | unsigned int id; |
30 | unsigned long reg; |
31 | unsigned int shift; |
32 | unsigned int num_parents; |
33 | const char *name; |
34 | const char *const *parents; |
35 | }; |
36 | |
37 | #define PNAME(x) static const char *const x[] __initconst |
38 | |
39 | #define MUX(_id, _name, _pnames, _reg, _shift) \ |
40 | { \ |
41 | .id = _id, \ |
42 | .reg = _reg, \ |
43 | .shift = _shift, \ |
44 | .name = _name, \ |
45 | .parents = _pnames, \ |
46 | .num_parents = ARRAY_SIZE(_pnames) \ |
47 | } |
48 | |
49 | |
50 | struct pistachio_div { |
51 | unsigned int id; |
52 | unsigned long reg; |
53 | unsigned int width; |
54 | unsigned int div_flags; |
55 | const char *name; |
56 | const char *parent; |
57 | }; |
58 | |
59 | #define DIV(_id, _name, _pname, _reg, _width) \ |
60 | { \ |
61 | .id = _id, \ |
62 | .reg = _reg, \ |
63 | .width = _width, \ |
64 | .div_flags = 0, \ |
65 | .name = _name, \ |
66 | .parent = _pname, \ |
67 | } |
68 | |
69 | #define DIV_F(_id, _name, _pname, _reg, _width, _div_flags) \ |
70 | { \ |
71 | .id = _id, \ |
72 | .reg = _reg, \ |
73 | .width = _width, \ |
74 | .div_flags = _div_flags, \ |
75 | .name = _name, \ |
76 | .parent = _pname, \ |
77 | } |
78 | |
79 | struct pistachio_fixed_factor { |
80 | unsigned int id; |
81 | unsigned int div; |
82 | const char *name; |
83 | const char *parent; |
84 | }; |
85 | |
86 | #define FIXED_FACTOR(_id, _name, _pname, _div) \ |
87 | { \ |
88 | .id = _id, \ |
89 | .div = _div, \ |
90 | .name = _name, \ |
91 | .parent = _pname, \ |
92 | } |
93 | |
94 | struct pistachio_pll_rate_table { |
95 | unsigned long long fref; |
96 | unsigned long long fout; |
97 | unsigned long long refdiv; |
98 | unsigned long long fbdiv; |
99 | unsigned long long postdiv1; |
100 | unsigned long long postdiv2; |
101 | unsigned long long frac; |
102 | }; |
103 | |
104 | enum pistachio_pll_type { |
105 | PLL_GF40LP_LAINT, |
106 | PLL_GF40LP_FRAC, |
107 | }; |
108 | |
109 | struct pistachio_pll { |
110 | unsigned int id; |
111 | unsigned long reg_base; |
112 | enum pistachio_pll_type type; |
113 | struct pistachio_pll_rate_table *rates; |
114 | unsigned int nr_rates; |
115 | const char *name; |
116 | const char *parent; |
117 | }; |
118 | |
119 | #define PLL(_id, _name, _pname, _type, _reg, _rates) \ |
120 | { \ |
121 | .id = _id, \ |
122 | .reg_base = _reg, \ |
123 | .type = _type, \ |
124 | .rates = _rates, \ |
125 | .nr_rates = ARRAY_SIZE(_rates), \ |
126 | .name = _name, \ |
127 | .parent = _pname, \ |
128 | } |
129 | |
130 | #define PLL_FIXED(_id, _name, _pname, _type, _reg) \ |
131 | { \ |
132 | .id = _id, \ |
133 | .reg_base = _reg, \ |
134 | .type = _type, \ |
135 | .rates = NULL, \ |
136 | .nr_rates = 0, \ |
137 | .name = _name, \ |
138 | .parent = _pname, \ |
139 | } |
140 | |
141 | struct pistachio_clk_provider { |
142 | struct device_node *node; |
143 | void __iomem *base; |
144 | struct clk_onecell_data clk_data; |
145 | }; |
146 | |
147 | extern struct pistachio_clk_provider * |
148 | pistachio_clk_alloc_provider(struct device_node *node, unsigned int num_clks); |
149 | extern void pistachio_clk_register_provider(struct pistachio_clk_provider *p); |
150 | |
151 | extern void pistachio_clk_register_gate(struct pistachio_clk_provider *p, |
152 | struct pistachio_gate *gate, |
153 | unsigned int num); |
154 | extern void pistachio_clk_register_mux(struct pistachio_clk_provider *p, |
155 | struct pistachio_mux *mux, |
156 | unsigned int num); |
157 | extern void pistachio_clk_register_div(struct pistachio_clk_provider *p, |
158 | struct pistachio_div *div, |
159 | unsigned int num); |
160 | extern void |
161 | pistachio_clk_register_fixed_factor(struct pistachio_clk_provider *p, |
162 | struct pistachio_fixed_factor *ff, |
163 | unsigned int num); |
164 | extern void pistachio_clk_register_pll(struct pistachio_clk_provider *p, |
165 | struct pistachio_pll *pll, |
166 | unsigned int num); |
167 | |
168 | extern void pistachio_clk_force_enable(struct pistachio_clk_provider *p, |
169 | unsigned int *clk_ids, unsigned int num); |
170 | |
171 | #endif |
172 | |